SLUU274A May   2007  – January 2022 TPS40193

 

  1.   Trademarks
  2. 1Introduction
    1. 1.1 Description
    2. 1.2 Applications
    3. 1.3 Features
  3. 2TPS40193EVM-001 Electrical Performance Specifications
  4. 3Schematic
  5. 4General Configuration and Description
    1. 4.1 Adjusting Output Voltage (R7)
    2. 4.2 Adjusting Short-Circuit Protection (R9)
    3. 4.3 Disable Jumper (JP1)
    4. 4.4 Test Point Descriptions
      1. 4.4.1 Input Voltage Monitoring (TP1, TP2)
      2. 4.4.2 Power-Good (TP3, TP4, TP5)
      3. 4.4.3 Compensation and Initialization (TP6)
      4. 4.4.4 Switching Waveforms (TP7, TP8, TP9, TP10)
      5. 4.4.5 Loop Analysis (TP11, TP12, TP13, TP14)
      6. 4.4.6 Output Voltage and Monitoring (TP15, TP16)
      7. 4.4.7 Pre-Bias Input (TP17)
  6. 5Test Setup
    1. 5.1 Equipment
      1. 5.1.1 Voltage Source
      2. 5.1.2 Meters
      3. 5.1.3 Loads
      4. 5.1.4 Oscilloscope
      5. 5.1.5 Recommended Wire Gauge
      6. 5.1.6 Other
    2. 5.2 Equipment Setup
    3. 5.3 Start-Up/Shutdown Procedure
    4. 5.4 Output Ripple Voltage Measurement Procedure
    5. 5.5 Control Loop Gain and Phase Measurement Procedure
    6. 5.6 Equipment Shutdown
  7. 6TPS40193EVM-001 Typical Performance Data and Characteristic Curves
    1. 6.1 Efficiency
    2. 6.2 Line and Load Regulation
    3. 6.3 Output Voltage Ripple
    4. 6.4 Switch Node
    5. 6.5 Control Loop Bode Plot
      1. 6.5.1 Low Line (VIN = 8 V)
      2. 6.5.2 High Line (VIN = 14 V)
  8. 7EVM Assembly Drawings and Layout
  9. 8Bill of Materials
  10. 9Revision History

4.4 Test Point Descriptions

Table 4-3 describes the TPS40196EVM-001 test points and identifies the respective sections of this user guide that discuss each test point.

Table 4-3 Test Point Descriptions
Test Point Label Use/Function Section
TP1 VIN+ Monitor input voltage to the module Section 4.4.1
TP2 VIN– Monitor input voltage to the module
TP3 Power-Good Power-Good output voltage Section 4.4.2
TP4 Ext Source External source for Power-Good circuit
TP5 GND Ground for external source for Power-Good
TP6 COMP Monitor COMP voltage Section 4.4.3, Section 4.4.5
TP7 GND Ground for SW, LDRV and HDRV measurements Section 4.4.4
TP8 HDRV Monitor high-side gate drive (Q2)
TP9 SW Monitor switch node waveforms
TP10 LDRV Monitor low-side gate drive (Q3)
TP11 GND Ground for Loop Monitoring Probe Section 4.4.5
TP12 CH1 Loop injection point and injection monitoring point
TP13 CH2 Loop injection point and output response monitoring point
TP14 GND Ground for Loop Monitoring Probe
TP15 VOUT+ Monitor output voltage from the module Section 4.4.6
TP16 VOUT– Monitor output voltage from the module
TP17 Pre-Bias Injection point to test pre-bias load compliance Section 4.4.7